How to enable signals while Android app is in background

I am trying to integrate VoIP Push Notifications in my app, so I can handle incoming connections. However, while the app is not in the foreground I cannot process any signals with Qt. It seems as if all signals emitted through queued connections are dropped (direct connections work, but are useless because Firebase runs in a different thread). Is there any way to temporarily activate regular signal processing while in background?

Hi @J-Hilk
I only need background operation for a short time after receiving an FCM data notification. I would expect the app to be woken up by the system in this case? But I'm still not sure if this will also wake up the event loop.